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Computation of Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Schedule of Net income per share

		Three Months Ended June 30,								Six Months Ended June 30,
		2012				2011				2012				2011
Net income (loss)		$	54,926			($	267	)		$	56,044			$	323
Weighted-average common shares outstanding			21,757				20,700				21,241				20,461
Additional dilutive common stock equivalents			342				-				342				360
Diluted shares outstanding			22,099				20,700				21,583				20,821
Net income (loss) per share – basic		$	2.52			($	0.01	)		$	2.64			$	0.02
Net income (loss) per share – diluted		$	2.49			($	0.01	)		$	2.60			$	0.02

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations.

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